BIKERELIABILITY
MOT DATA · GREAT BRITAIN · 2005–2025
League table/ KAWASAKI/EN 450-A1
Model report · 2005–2025

KAWASAKI EN 450-A1

454cc Petrol Class 2
72.9%
first-time pass rate
16.6%
failed outright
21,509
median miles at test
391
MOT tests, 2005–2025

Pass rate over time

first-time pass rate by test year · 2006–2010

The EN 450-A1's first-time pass rate has risen 8.1 points since 2006, 70.0% to 78.1%.

68%74%80%2006: 70.0% pass (30 tests)2009: 71.4% pass (35 tests)2010: 78.1% pass (32 tests)20062010

Pass rate by mileage

how the EN 450-A1's first-time pass rate falls with the odometer · class average 84.9%

A low-mileage EN 450-A1 passes first time 72.3% of the time; by 40k that's 67.7%.

65%72%80%0k: 72.3% pass (65 tests)10k: 77.5% pass (111 tests)20k: 71.7% pass (113 tests)30k: 66.7% pass (45 tests)40k: 67.7% pass (31 tests)0k20k40k

First-time pass rate by odometer reading at test, 10,000-mile bands for this model. Mileage is the strongest reliability signal. See the full curve.

What fails on a EN 450-A1

failure defects by component group · advisories excluded
Component group Share of defects Defects % of defects
steering and suspension
47 29
lighting and signalling
41 25.3
brakes
28 17.3
lamps and reflectors
10 6.2
fuel and exhaust
9 5.6
reg plates and vin
7 4.3
suspension
6 3.7
Identification of the vehicle
5 3.1
tyres and wheels
5 3.1
driving controls
4 2.5

Defects recorded against failed normal tests, 2005–2025, grouped by DVSA inspection section. One test can record multiple defects.

How rivals compare

same type, similar capacity, high test volume

On first-time pass rate the EN 450-A1 beats 0 of its 4 closest rivals (KAWASAKI ER5, YAMAHA XV535, SUZUKI GS500).

Rivals share this bike's type and sit within ±30% of its engine capacity, ≥ 5,000 tests. Card colour = better/worse first-time pass rate than the EN 450-A1.

Pass rate by registration year

how each model-year cohort fares · registration year from first use date

Best year to buy used: 1985 (74.2% pass). Weakest: 1986 (72.3%).

72%73%75%1985: 74.2% pass (256 tests)1986: 72.3% pass (119 tests)19851986

First-time pass rate by the year each bike was first registered (cohorts with ≥ 50 tests). Older cohorts are survivors: the worst examples have already left the road, which tends to lift the earliest years.